[ovirt-users] oVirt HA behavior

[Yaniv Kaul]

On Tue, Sep 19, 2017 at 1:00 AM, Alex K <rightkicktech at gmail.com> wrote:

> Enabling VM leases could be an answer to this. Will test tomorrow.
>
>
Indeed. Let us know how it worked for you.


> Thanx,
> Alex
>
> On Sep 18, 2017 7:50 PM, "Alex K" <rightkicktech at gmail.com> wrote:
>
> Hi All,
>
> I have the following issue with the HA behavior of oVirt 4.1 and need to
> check with you if there is any work around from your experience.
>
> I have 3 servers (A, B, C) with hosted engine in self hosted setup on top
> gluster with replica 3 + 1 arbiter. All good except one point:
>
> The hosts have been configured with power management using IPMI (server
> iLO).
> If I disconnect power from one host (say C) (or disconnect all network
> cables of the host) the two other hosts go to a loop where they try to
> verify the status of the host C by issuing power management commands to the
> host C. Since power of host is off the server iLO does not respond on the
> network and the power management of host C fails, leaving the VMs that were
> running on the host C in an unknown state and they are never restarted to
> the other hosts.
>
> Is there any fencing option to change this behavior so as if both
> available hosts fail to do power management of the unresponsive host to
> decide that the host is down and to restart the VMs of that host to the
> other available hosts.
>
>
No, this is a bad assumption. Perhaps they are the ones isolated form it?
Y.


>
> I could also add additional power management through UPS to avoid this
> issue but this is not currently an option and I am interested to see if
> this behavior can be tweaked.
>
> Thanx,
> Alex
>
>
>
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